Keito is of Japanese origin, derived from the word "keito", which means "respectful". It is often used as a given name for both boys and girls, reflecting its unisex nature in modern times. The popularity of Keito has grown in recent years, particularly in Japan but also gaining recognition globally due to its unique sound and cultural significance.
Keito has seen an increase in popularity since 2011, with a significant jump from 5 births in that year to 9 in 2017. However, there was a decrease again to 6 births in 2023, but overall the name has been used consistently over these years with a total of 20 births.